Henry lencke



(No Model.)

H. LBNGKE.

P'URNAGE GRATB.

No. 353,689. Patented Deo. '7, 1886.

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EWWNHII N. PETERS. Pham-umgmpher, washinglan, D. C.

UNITED STATES PATENT Price,

HENRY LENCKE, OE READING, PENNSYLVANIA.

FURNACE-GRATE.

SPECIFICATION forming part of Letters Patent No. 353,689, dated December 7, 1886.

Application tiled September 4, 1886. Serial No. 212,706. (No model.)

K of manufacture; that is cheap and durable and simple in operation.

With these objects in view the invention consists in cert-ain features of construction hereinafter described, and particularly pointed out in the claims.

Referring to the drawings, Figure lis a plan view of a grate constructed in accordance with my invention. Fig. 2 isl a central transverse section on the line x x of Fig. l, and Fig. 3 is a detail in perspective, hereinafter referred to.

Like letters indicate like parts in all the figures.

A represents the usual base, and is formed with the L-shaped flange A, upon which the grate rests, and the base-supporting flange A?, extending around said L-shaped iiange, said base resting upon the boiler-foundation, as is usual.

As herein shown, the grateis formed in three sections, B B B2, (but, if desired, it may be cast integraL) t-he object being to so construct the grate that it may be easily removed from the boiler for repairs and replaced without the necessity of taking the boiler from the base. Vithin leach of the side sections, B B2, and cast integral therewith, is a frame comprising the longitudinal sides B3 and the transverse sides B4, which frame extends below the lower plane of the grate-bars forming the grate. The side bars, B3, are longitudinally grooved throughout their length, as at B5, and are thus adapted to receive a slide, O, a liange, B6, formed on the side bars, serving to prevent the groove from being choked by ashes.

The slide G is perforated, as at C', so as not to impede the draft, and is drawn out at one end to form a tang, G2, which may be provided with a screw-threaded aperture, C3, into which is inserted an operating-handle, C4, which handle passes through the base of the boiler and is formed at its end with a handhold, C5. By this construction there is provided a convenient door or slide, which, by means of a handle, C5, may be drawn to the front, so as to permit the passage of ashes or cinders through the grate and into the ash-pit. By providing two slides one side of the fire may be replenished or revived without interfering with the operation of the other side, so that a uniform heat is maintained. If desired, however, in lieu of forming the tang C2, the

plate may be perforated at that end andV thereby adapted to be operated by an ordinary hook-poker, (see dotted line, Fig. 3,) or the end of the slide may be turned down, asshown by dotted lines Y, and serve with either ahookpoker or a rod, c4, secured thereto, and as a stop when the slide is pushed in.

It is well known among those familiar with furnace-fires that 'considerable time and labor are required in building or reviving the same, and that not only time is wasted, but also that the4 duty is irksome and causes a waste of considerable heat and chilling of the boiler. This latter fact is by reason of the furnacedoor having to be open for a considerable length of time, in that in the operation of reviving are the reman first has to carefully rake all the live coals to one side of the grate, thus exposing the dead coals or ashes, which must be removed shovelful by shovelful, where upon the coals are raked over to the opposite side of the grate and the same operation is repeated. All this time the furnace-dooris open, the operator being exposed to the intense heat, and the cold air rushing in quickly cools or chills the boiler, whereby, after the furnace is cleaned, a greater quantity of coal is required in order to get up steam. It is apparent that by this method manyinconveniences andlosses are caused, besides quite a loss of time both to the operator and the machinery, which very often must stand idle until sufficient steam is made to put the same in motion.

By my invention, however, the above objections and others as great are obviated. By

forming the grate-sections with openings greater firmness and less weight are secured,

IOO

f 2 l f A 353,689

an amount of lmetal is saved, the cost of the slide and grate is reduced, including 'my' improvement, and, also, its liability to warp is lessened. i r

The operation'of reviving a fire in avgrate constructed in accordance with my invention consumes about one-fourth the time heretofore required. It also overcomes the danger of burning or injuring the clothes or shoes of the operator or burning the floor by live coals falling off the shovel used in the oldmethod of taking everything out the front hre-door.

Another advantage is that all dust and fine are pushed out by the end of the slide when the same is withdrawn or entered.

Having described my invention and its operation, what I claim is` 1. A furnace-grate provided with one or more frame-works integral therewith and forming openings, said frame-works being eX- tended below the plane of the under surface of said grate and' longitudinally grooved, in combination with perforated slides adapted to enter said grooves, substantially as specified.

2. Afurnace-grate composed of two or more sections, each outer section being provided with an integral frame-work extending below the under surface of the grate and longitudinally grooved, in combination withv a perforated slide having a lip formed thereon apertured to receive an operating-rod, substantially' as specified. Y

3. The combination of the sectionsB B B2 with the frame-work comprising the integral longitudinal or side bars, B3and the transverse bars B4, said longitudinal bars extending below the plane of the under surface of the grate, and grooved, as at B5, and anged, as at B6, and with the slide C, perforated, as'at C', and

having the apertured screw-threaded tang C'L and rod C, substantially as specified.V f

In testimony whereof IafX mysignature in l presence of two witnesses.

HENRY LENCKE.

Witnesses:

MATTHIAS MENGEL, E. G. HUs'rER. 

